BART is https://en.wikipedia.org/wiki/Commuter_rail https://en.wikipedia.org/wiki/Commuter_rail rather than a bus. In San Francisco it’s a subway line, in the s

BART is https://en.wikipedia.org/wiki/Commuter_rail https://en.wikipedia.org/wiki/Commuter_rail rather than a bus. In San Francisco it’s a subway line, in the suburbs it’s elevated and makes one or two stops per town.